DOE Awards $5.25 Billion Through SPARK Initiative to Upgrade the US Power Grid
The US Department of Energy will spend $5.25 billion through its SPARK initiative on 31 grid projects in 26 states, adding 23 GW of capacity.
Photo by Petr Ganaj on Pexels
The US Department of Energy announced on September 24, 2026, that it will direct $5.25 billion toward 31 grid-improvement projects in 26 states under its SPARK grid initiative, aiming to add 23 gigawatts of electricity capacity without building new transmission corridors. The department’s Office of Electricity said the investment combines $1.9 billion in federal funding with $3.35 billion in recipient cost-share, and is expected to benefit roughly 100 million Americans, according to the DOE’s announcement.
SPARK stands for “Speed to Power through Accelerated Reconductoring and other Key Advanced Transmission Technology Upgrades.” US Secretary of Energy Chris Wright said the selected projects “will get more out of the infrastructure we already have, move more electricity across the grid, and help deliver affordable, reliable, and secure power,” according to the DOE release. Assistant Secretary Catherine Jereza said the department is “moving with urgency to strengthen our grid, lower costs, and ensure America has the energy infrastructure needed.”
How the SPARK grid initiative adds capacity without new power lines
The 23 GW figure combines two distinct approaches, the DOE said: reconductoring more than 1,500 miles of existing transmission lines with higher-capacity conductors strung on current towers, and deploying grid-enhancing technologies (GETs), such as dynamic line rating and power-flow control software, across roughly 21,000 miles of the network. Both avoid the multi-year permitting timelines associated with new transmission corridors.
Energy-sector news outlet mGrid, reviewing the same DOE figures, noted an important distinction the department’s single 23 GW headline number does not make explicit: physical reconductoring adds firm, always-available capacity, while grid-enhancing technologies chiefly “release headroom that already exists on a cool, windy day” rather than adding new physical infrastructure. In other words, some of the claimed capacity gain depends on weather conditions rather than representing a fixed year-round increase. The DOE’s own release does not break out how much of the 23 GW comes from each method, a limitation this article notes because it affects how the headline figure should be read.
Funding for the program was reallocated from the existing Grid Resilience and Innovation Partnerships (GRIP) program rather than drawn from new congressional appropriation, according to mGrid’s reporting on the DOE’s selection documents.
One named example project is in Houston, Texas, where utility CenterPoint Energy is receiving $50 million in federal funding for what local broadcaster KPRC (Click2Houston) described as a “first-of-its-kind Houston grid project,” part of the wider 31-project slate; specific capacity or completion figures for the Houston project were not detailed in that report.
| Metric | Figure |
|---|---|
| Program name | SPARK (Speed to Power through Accelerated Reconductoring and other Key Advanced Transmission Technology Upgrades) |
| Federal (DOE) funding | $1.9 billion |
| Recipient cost-share | $3.35 billion |
| Total project value | $5.25 billion |
| Projects selected | 31 |
| States covered | 26 |
| Additional grid capacity (DOE estimate) | 23 GW |
| Transmission lines to be reconductored | 1,500+ miles |
| Network reach of grid-enhancing technologies | ~21,000 miles |
| Americans expected to benefit | ~100 million |
| Funding source | Reallocated from the Grid Resilience and Innovation Partnerships (GRIP) program |
Source: US Department of Energy, September 24, 2026; mGrid analysis of DOE selection documents.
The projects were chosen through DOE’s Office of Electricity from applications submitted after the SPARK initiative opened for concept papers in March 2026, when Wright said “important grid modernization and energy addition efforts were not prioritized by past leaders.” The department has not published a full list identifying every recipient utility or project by name; it says a complete project list is available through its website.
Grid capacity has become a pressing issue in the United States as data centers, AI computing, and electrification of heating and transport increase electricity demand faster than new transmission lines can be permitted and built. Reconductoring and grid-enhancing technologies are widely cited by grid operators, including the Federal Energy Regulatory Commission, as lower-cost, faster-to-deploy alternatives to new transmission corridors, though neither substitutes for new lines in every case.
Background: the Grid Resilience and Innovation Partnerships program
The GRIP program, from which SPARK funding was reallocated, was established to fund grid resilience and capacity projects nationwide with roughly $10.5 billion allocated over five years, according to the DOE’s March 2026 SPARK announcement. It has previously funded projects such as FERC’s approval of the Southwest Power Pool’s grid topology optimization software and DOE’s environmental review of the North Plains Connector transmission line, both aimed at expanding usable grid capacity. Congress has also considered dedicated grid-technology funding through measures such as the proposed STRONG GRID Act’s $700 million microgrid deployment fund. Private capital has moved in parallel: grid-software company Gridsight raised a $26 million Series B in 2026 to help utilities identify unused capacity on existing lines, the same category of grid-enhancing technology at the center of the SPARK selections announced this week.
Sources: US Department of Energy; PV Tech; mGrid; Click2Houston (KPRC)
Featured image: photo by Petr Ganaj on Pexels (free Pexels license).
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I specialize in sustainability education, curriculum co-creation, and early-stage project strategy. At WINSS, I craft articles on sustainability, transformative AI, and related topics. When I’m not writing, you’ll find me chasing the perfect sushi roll, exploring cities around the globe, or unwinding with my dog Puffy — the world’s most loyal sidekick.
